//主组件文件，定义了一个基础的 React 组件

import logo from './logo.svg';
import './App.css';
import Hello from './Hello'

function App() {
    return (
        <div className="App">
            <header className="App-header">
                <img src={logo} className="App-logo" alt="logo" />
                <p>Edit <code>src/App.js</code> and save to reload.</p>
                <a className="App-link" href="https://reactjs.org" target="_blank" rel="noopener noreferrer">Learn React</a>
                <Hello />
            </header>
        </div>
    );
}

export default App;
